Join Date: Mar 2012
Location: Western Germany
There are two main oil seals sealing the king pin. You can take off the whole assembly in one piece out of the car and dismantle it on the work bench. It's fabricated to last for a century if only the seals are ok and oil level is ok.
This piece of manufacturing genius tells you all the truth about both why BMW nearly went bankrupt with the 501/502/507-series all sharing the same construction and that they were coming from aeroplane crafting only some years ago.
Picture shows that per side the whole assy is mounted with 6 bolts only; the cast iron part remains in the car only. I've rebuild last year a full front suspension on a 507 and a 502. You'll need to fabricate some special tools to do the job.
Last edited by hunttheshunt; 10-22-2016 at 12:21 AM.